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/** |
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* List Students Enrolled Script |
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* |
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* Handles filter and search interactions for the enrolled students table. |
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* Pagination is handled by loadAJAX.js clickNumberPage (via .page-numbers class). |
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* |
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* @since 4.3.3 |
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* @version 1.0.0 |
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*/ |
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import * as lpUtils from 'lpAssetsJsPath/utils.js'; |
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|
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export class ListStudentsEnrolled { |
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constructor() { |
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this.instructorId = null; |
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this.elContainer = null; |
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this.isRequesting = false; |
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} |
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|
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static selectors = { |
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elContainer: '#lp-enrolled-students', |
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elForm: '.lp-enrolled-students-form', |
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elLPTarget: '.lp-target', |
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elCourseNameInput: '.lp-enrolled-filter-course-name', |
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elCourseIdInput: '#lp-enrolled-filter-course-id', |
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elCourseList: '#lp-enrolled-course-list', |
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elSearchInput: '.lp-enrolled-search-input', |
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elStartDateInput: '.lp-enrolled-filter-start-date', |
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elEndDateInput: '.lp-enrolled-filter-end-date', |
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elBtnSearch: '.lp-enrolled-btn-search', |
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elBtnClear: '.lp-enrolled-btn-clear', |
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}; |
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|
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init() { |
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this.elContainer = document.querySelector( |
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ListStudentsEnrolled.selectors.elContainer |
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); |
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if ( ! this.elContainer ) { |
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return; |
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} |
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|
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const elLPTarget = this.elContainer.querySelector( |
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ListStudentsEnrolled.selectors.elLPTarget |
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); |
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const ajaxHandle = this.getAjaxHandle(); |
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if ( elLPTarget && ajaxHandle ) { |
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const dataSend = ajaxHandle.getDataSetCurrent( elLPTarget ); |
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if ( dataSend && dataSend.args ) { |
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this.instructorId = dataSend.args.instructor_id; |
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} |
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} |
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|
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this.events(); |
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} |
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|
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events() { |
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if ( ListStudentsEnrolled._loadedEvents ) { |
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return; |
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} |
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|
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ListStudentsEnrolled._loadedEvents = this; |
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|
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// Search/Clear button click. |
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lpUtils.eventHandlers( 'click', [ |
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{ |
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selector: ListStudentsEnrolled.selectors.elBtnSearch, |
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class: this, |
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callBack: this.searchStudents.name, |
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}, |
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{ |
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selector: ListStudentsEnrolled.selectors.elBtnClear, |
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class: this, |
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callBack: this.clearFilters.name, |
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}, |
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] ); |
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|
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// Search on Enter key. |
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lpUtils.eventHandlers( 'keydown', [ |
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{ |
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selector: ListStudentsEnrolled.selectors.elSearchInput, |
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class: this, |
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callBack: this.triggerBtnSearch.name, |
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checkIsEventEnter: true, |
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}, |
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{ |
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selector: ListStudentsEnrolled.selectors.elCourseNameInput, |
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class: this, |
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callBack: this.triggerBtnSearch.name, |
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checkIsEventEnter: true, |
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}, |
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{ |
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selector: ListStudentsEnrolled.selectors.elStartDateInput, |
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class: this, |
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callBack: this.triggerBtnSearch.name, |
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checkIsEventEnter: true, |
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}, |
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{ |
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selector: ListStudentsEnrolled.selectors.elEndDateInput, |
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class: this, |
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callBack: this.triggerBtnSearch.name, |
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checkIsEventEnter: true, |
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}, |
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] ); |
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|
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lpUtils.eventHandlers( 'change', [ |
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{ |
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selector: ListStudentsEnrolled.selectors.elStartDateInput, |
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class: this, |
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callBack: this.checkDatesRange.name, |
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}, |
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{ |
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selector: ListStudentsEnrolled.selectors.elEndDateInput, |
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class: this, |
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callBack: this.checkDatesRange.name, |
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}, |
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] ); |
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} |
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|
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// Click button search. |
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triggerBtnSearch() { |
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const buttonSearch = this.elContainer.querySelector( |
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ListStudentsEnrolled.selectors.elBtnSearch |
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); |
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if ( buttonSearch ) { |
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buttonSearch.click(); |
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} |
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} |
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|
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// Ensure start date is not after end date and vice versa. If invalid, adjust the other date to match. |
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checkDatesRange( args ) { |
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const { e } = args; |
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const elInput = e?.target; |
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if ( ! elInput ) { |
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return; |
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} |
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|
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const elForm = elInput.closest( ListStudentsEnrolled.selectors.elForm ); |
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if ( ! elForm ) { |
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return; |
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} |
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|
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const startDateInput = elForm.querySelector( |
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ListStudentsEnrolled.selectors.elStartDateInput, |
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); |
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const endDateInput = elForm.querySelector( |
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ListStudentsEnrolled.selectors.elEndDateInput, |
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); |
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|
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if ( elInput === startDateInput ) { |
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if ( startDateInput.value ) { |
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endDateInput.min = startDateInput.value; |
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if ( endDateInput.value && endDateInput.value < startDateInput.value ) { |
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endDateInput.value = startDateInput.value; |
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} |
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} else { |
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endDateInput.min = ''; |
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} |
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} else if ( elInput === endDateInput ) { |
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if ( endDateInput.value ) { |
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startDateInput.max = endDateInput.value; |
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if ( startDateInput.value && startDateInput.value > endDateInput.value ) { |
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startDateInput.value = endDateInput.value; |
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} |
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} else { |
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startDateInput.max = ''; |
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} |
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} |
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} |
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|
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setButtonLoadingState( btn, isLoading ) { |
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if ( ! btn ) { |
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return; |
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} |
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|
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lpUtils.lpSetLoadingEl( btn, isLoading ? 1 : 0 ); |
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btn.disabled = !! isLoading; |
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} |
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|
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getAjaxHandle() { |
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const ajaxHandle = window.lpAJAXG; |
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if ( |
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! ajaxHandle || |
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typeof ajaxHandle.getDataSetCurrent !== 'function' || |
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typeof ajaxHandle.setDataSetCurrent !== 'function' || |
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typeof ajaxHandle.showHideLoading !== 'function' || |
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typeof ajaxHandle.fetchAJAX !== 'function' |
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) { |
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return null; |
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} |
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|
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return ajaxHandle; |
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} |
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|
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syncCourseIdFromName( elForm ) { |
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const courseIdInput = elForm?.querySelector( |
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ListStudentsEnrolled.selectors.elCourseIdInput |
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); |
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if ( ! courseIdInput ) { |
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return; |
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} |
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|
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courseIdInput.value = '0'; |
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|
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const courseNameInput = elForm.querySelector( |
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ListStudentsEnrolled.selectors.elCourseNameInput |
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); |
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const datalist = elForm.querySelector( |
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ListStudentsEnrolled.selectors.elCourseList |
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); |
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const courseName = courseNameInput?.value.trim() || ''; |
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if ( ! courseName || ! datalist ) { |
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return; |
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} |
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|
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const selectedOption = Array.from( datalist.options || [] ).find( |
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( option ) => option.value.trim() === courseName |
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); |
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if ( selectedOption ) { |
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courseIdInput.value = selectedOption.dataset.courseId || '0'; |
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} |
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} |
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|
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getFilterArgsFromForm( elForm, dataArgs = {} ) { |
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this.syncCourseIdFromName( elForm ); |
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return lpUtils.mergeDataWithDatForm( elForm, dataArgs ); |
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} |
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|
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/** |
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* Search students: update args.search, re-fetch. |
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* @param args |
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*/ |
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searchStudents( args ) { |
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const { e } = args; |
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if ( e ) { |
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e.preventDefault(); |
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} |
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const btn = args?.target?.closest( |
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ListStudentsEnrolled.selectors.elBtnSearch |
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); |
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if ( btn ) { |
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if ( |
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this.isRequesting || |
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btn.classList.contains( 'loading' ) || |
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btn.disabled |
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) { |
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return; |
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} |
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} else if ( this.isRequesting ) { |
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return; |
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} |
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|
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const elForm = btn.closest( ListStudentsEnrolled.selectors.elForm ); |
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const elLPTarget = this.elContainer.querySelector( |
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ListStudentsEnrolled.selectors.elLPTarget |
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); |
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if ( ! elLPTarget || ! elForm ) { |
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return; |
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} |
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|
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const ajaxHandle = this.getAjaxHandle(); |
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if ( ! ajaxHandle ) { |
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return; |
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} |
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|
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this.setButtonLoadingState( btn, true ); |
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|
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const dataSend = ajaxHandle.getDataSetCurrent( elLPTarget ); |
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dataSend.args = this.getFilterArgsFromForm( |
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elForm, |
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dataSend.args || {} |
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); |
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dataSend.args.paged = 1; |
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ajaxHandle.setDataSetCurrent( elLPTarget, dataSend ); |
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|
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this.reloadContent( elLPTarget, dataSend, btn ); |
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} |
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|
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/** |
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* Clear all filters and reload default data. |
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* @param args |
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*/ |
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clearFilters( args ) { |
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const { e } = args; |
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if ( e ) { |
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e.preventDefault(); |
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} |
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const btn = args?.target?.closest( |
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ListStudentsEnrolled.selectors.elBtnClear |
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); |
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if ( btn ) { |
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if ( |
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this.isRequesting || |
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btn.classList.contains( 'loading' ) || |
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btn.disabled |
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) { |
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return; |
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} |
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} else if ( this.isRequesting ) { |
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return; |
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} |
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|
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const elForm = btn.closest( ListStudentsEnrolled.selectors.elForm ); |
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const elLPTarget = this.elContainer.querySelector( |
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ListStudentsEnrolled.selectors.elLPTarget |
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); |
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if ( ! elLPTarget || ! elForm ) { |
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return; |
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} |
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|
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const ajaxHandle = this.getAjaxHandle(); |
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if ( ! ajaxHandle ) { |
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return; |
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} |
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|
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this.setButtonLoadingState( btn, true ); |
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|
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elForm.reset(); |
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this.syncCourseIdFromName( elForm ); |
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|
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const dataSend = ajaxHandle.getDataSetCurrent( elLPTarget ); |
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dataSend.args = lpUtils.mergeDataWithDatForm( |
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elForm, |
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dataSend.args || {} |
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); |
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dataSend.args.paged = 1; |
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ajaxHandle.setDataSetCurrent( elLPTarget, dataSend ); |
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|
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this.reloadContent( elLPTarget, dataSend, btn ); |
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} |
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|
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/** |
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* Shared reload helper: loading indicator + AJAX fetch. |
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* @param elLPTarget |
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* @param dataSend |
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* @param btn |
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*/ |
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reloadContent( elLPTarget, dataSend, btn = null ) { |
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const ajaxHandle = this.getAjaxHandle(); |
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if ( ! ajaxHandle ) { |
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this.isRequesting = false; |
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this.setButtonLoadingState( btn, false ); |
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return; |
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} |
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|
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this.isRequesting = true; |
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ajaxHandle.showHideLoading( elLPTarget, 1 ); |
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|
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const callBack = { |
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success: ( response ) => { |
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const { status, data } = response; |
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if ( 'success' === status ) { |
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elLPTarget.innerHTML = data.content; |
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} |
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}, |
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error: ( error ) => console.error( error ), |
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completed: () => { |
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this.isRequesting = false; |
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ajaxHandle.showHideLoading( elLPTarget, 0 ); |
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this.setButtonLoadingState( btn, false ); |
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}, |
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}; |
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|
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ajaxHandle.fetchAJAX( dataSend, callBack ); |
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} |
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} |
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|
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// Auto-initialize when DOM is available (for standalone page load). |
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const listStudentsEnrolled = new ListStudentsEnrolled(); |
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|
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lpUtils.lpOnElementReady( ListStudentsEnrolled.selectors.elContainer, () => { |
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listStudentsEnrolled.init(); |
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} ); |
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|
